Ernst toenniessen



Aug. 28, 1928. 1,682,155 E- TOENNIESSEN WHEEL FOR ranssma was EMPTY TUBES UPON THE SPINDLES or srnmme AND DOUBLING muss Filed Jan. 1927 Patented Aug. 28, 1928.

UNITED STATES PATENT OFFICE.

ERNST TOENNIESSEN, OF TUBINGEN, GERMANY.

WHEEL FOR PRESSING THE EMPTY TUBES UPON THE SPINDLES OF, SPINNING AND DOUBLING FRAMES.

Application filed January 8, 1927, Serial No. 159,978, and in Germany January 11, 1926.

This invention relates to wheel for pressing the empty tubes upon the spindles of spinningand doubling-frames. Up to the present the empty tubes or bobbins were pressed upon their spindles either by hand or mechanically. It is, however, a well known fact that the pressing by hand requires much time. vThe apparatus of known type have the inconvenience to only press those tubes tightly onto the spindleswhich snugly fit, consequently only tightly pressing those tubes onto the spindles wh ch are higher situated, whilst the remaining, somewhat lower situated tubes, are not pressed on at all. Accordingly, when the machine is started, the last-mentioned tubes run idle and the yarn does not receive the desired twist. The result is, that the threads break on the spinning frame and also during the further treatment.

The present invention, as will hereinafter be understood, avoids all these inconveniences.

One form of construction of theobject of the invention is shown, by way of example, in the accompanying drawing.

Fig. l is a front elevation of the improved wheel placed upon the spindles.

Fig. 2 is a cross section on line AB of Fig. 1.

The advantages of the present invention consist therein, that a wheel R, which is provided at its centre with a hand-lever or shaft h, serving to, guide and press the wheel over the tubes H, presses all the tubes, one after the other, e. g. each tube separately, always corresponding to their seat,

tightly and uniformly onto their spindles. Wheel R is cons-structed like a wheel of a railway car (Fig. 2), with the difference, however, that instead of thesmooth runningsurface, a circular running surface of roundedoff teeth 9 (Fig. 1) is provided, the position of said teeth beingiso accurately cal culated, that the intervals between the teeth exactly fit the correct position of the tubes,

e. g, the teeth per se always engage the intervals between the tubes. The operation is'as follows: 7

After having taken off-the charged tubes, and after having loosely placed the new empty tubes on the spindles, the workman takes the shaft h in his iands, the teeth of'the wheel being directed towards the machine.

He starts at one end of the machine, places one interval between two teeth a" on the first tube H and then walks along the machine in rolling the wheel over the row of loosely set tubes H. Theaccurately calculated position of the teeth a" will, when said wheel is rolled over the tubes, uniformly and tightly press the tubes upon the spindles, the intervals between the teeth coming in touch with the tubes to be pressed.

Practice has shown that in this manner 500 and more tubes can easily be tightly and uniformly pressed upon their spindles in a few seconds, whereas the same work by hand affords ten times as much time. The advantages of the present invention are to be found in the economy of time and in the good seat of every single tube after the hereoperation has taken inbefore-ment i oned place.

I claim:

1. In a device for pressing empty tubes upon the spindlesof'spinningr and doubling frames, comprising in combination a Wheel with a continuous. circular running surface of rounded-off teeth, means fixed at the centre of the wheel for handling the same, the intervals of said teeth being so situated that they accurately fit the several tubes the one after the other when the wheel is rolled overthe row of tubes.

2. In a device for pressing empty tubes upon the spindles of spinningand doubling frames, comprising in combination a wheel with a continuous circular runnmg surface of roundedofl teeth, a hand-lever or shaft I at the centre of the wheel for handling the same, the intervals of "said teeth being so' situated that they accurately fit the several tubes the one after the other when the wheel is rolled over the row of tubes.

In testimony whereof I aflix my signature.

ERNST TOENNIESSEN. 

